EP1921206A2 - Rouleau élargisseur - Google Patents

Rouleau élargisseur Download PDF

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Publication number
EP1921206A2
EP1921206A2 EP08000366A EP08000366A EP1921206A2 EP 1921206 A2 EP1921206 A2 EP 1921206A2 EP 08000366 A EP08000366 A EP 08000366A EP 08000366 A EP08000366 A EP 08000366A EP 1921206 A2 EP1921206 A2 EP 1921206A2
Authority
EP
European Patent Office
Prior art keywords
roller tube
spreader roll
roll according
curvature
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08000366A
Other languages
German (de)
English (en)
Other versions
EP1921206B1 (fr
EP1921206A3 (fr
Inventor
Josef Schneid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1921206A2 publication Critical patent/EP1921206A2/fr
Publication of EP1921206A3 publication Critical patent/EP1921206A3/fr
Application granted granted Critical
Publication of EP1921206B1 publication Critical patent/EP1921206B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0226—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/003—Bowed or curved rolls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/137—Means for varying longitudinal profiles
    • B65H2404/1371—Means for bending, e.g. for controlled deflection

Definitions

  • the invention relates to a spreader roll for a machine for producing a material web, in particular paper or board web.
  • a spreader roll of the type mentioned is, for example, in the EP 0 932 723 B1 described.
  • the known spreader roller holds a uniform roller tube, in which two axially spaced bearings are used. By deflecting the two bearings, the roller tube is bent or curved, so that the guided over the spreader roller paper web experiences a spreading effect.
  • a uniform bending beam learns but now only with a uniform bending moment and a uniform curvature over its entire length. In the present case, the course of the bending moment at the bearing points of the two bearings in each case a discontinuity in view of the introduction of shear forces, with the result that also sets a non-uniform curvature.
  • Fig. 2 shows the resulting bending element profile. It can be seen that at the bearing points 10, 12; 14, 16 of the two bearings 18, 20 result in the introduction of said lateral forces discontinuities.
  • Fig. 3 shows the resulting bending line of the known spreader roll.
  • the curvature decreases axially outside of the bearing points 12, 14, which leads to the particularly important web edges to a decrease in the spreading effect and therefore brings a fold run with it.
  • the spreading effect is adversely affected by discontinuities, and the roller must be built so wide that the bearing in question is located axially outside of the used web guide area.
  • the invention has for its object to provide an improved spreader roll of the type mentioned, in which the aforementioned disadvantages of the prior art are eliminated.
  • a uniform curvature should be achieved with compact width dimensions, in particular within the used web guide area.
  • this object is achieved by a spreader roll for a machine for producing a material web, in particular paper or board web, with a roller tube and associated therewith means for introducing bending moments, wherein the bending moments initiated exclusively on the front ends of the roller tube become.
  • curvature can be made larger there as well.
  • the means for introducing bending elements preferably comprise the front ends of the roller tube associated bearing carrier, with which the end-side roller tube ends are firmly connected.
  • the bearing carrier may be designed in particular flange.
  • the bearing supports associated bearing points for adjusting the curvature of the roller tube are adjusted accordingly.
  • the adjustment can be done by suitable force elements.
  • At least two bearing points are assigned to a respective bearing carrier.
  • the bearings of a respective bearing support for adjusting the curvature of the roller tube are expediently pivotable about a common axis from a neutral position.
  • the rigidity of the roller tube is uniform over its entire length, the result of the initiation of the bending moments over the end of the roller tube ends is a constant course of the bending moment over the entire length of the roller tube. Accordingly, the curvature over the entire tube length is uniform and without waste in the edge region.
  • the spreader roll according to the invention corresponds to a respective end region sloping stiffness to about one-third of the total length of the roll tube.
  • the roller tube may for example consist of fiber-reinforced plastic.
  • the rigidity of the roller tube may be at least partially adjusted by correspondingly changed material properties.
  • the roller tube may, for example, but also consist of a homogeneous material such as metal or the like.
  • the rigidity of the roller tube may be at least partially adjusted by correspondingly changed geometric dimensions.
  • the bearing supports associated bearing points are at least partially disposed outside of the roller tube, wherein preferably all bearing points are provided outside of the tube.
  • the bearing carrier may each have a generally axially outwardly facing approach, wherein the bearing points are provided radially on the outside of these approaches.
  • the bearings assigned to the bearing points can also be arranged at least partially within the roller tube.
  • the bearing brackets can each have a generally axially inside comprising the roller tube extending pipe socket, wherein the bearings are provided radially inwardly of the pipe socket.
  • the bearing carrier are rotatably mounted on the bearing points in each case on a Walzenab definedlement, which is correspondingly pivotable about a pivot axis for adjusting the curvature of the roller tube.
  • bearing supports are rotatably mounted on the bearing points on a fixed Walzenab rangelement and are pivotable about a common pivot axis for adjusting the curvature of the roller tube with respect to the fixed Walzenab assumptions.
  • At least two bearing points provided in different radial positions can also be assigned to a respective bearing carrier.
  • a spreader roll for a machine for producing a material web, in particular paper or board web, with a roller tube and associated therewith means for introducing bending moments in the region of the two roll tube ends, wherein the bending moments in Region of the two roller tube ends are each introduced via at least two different radial layers within the roller tube.
  • the means for introducing bending elements preferably comprise the roller tube end regions associated bearing points, which are used for adjusting the Curvature of the roller tube can be adjusted accordingly.
  • the bearings can be adjusted again via force elements.
  • At least two bearing points provided in different radial bearings are assigned to a respective roller tube end region.
  • the bearing points of a respective Walzenrohrend Schemes for adjusting the curvature of the roller tube from a neutral position about a common pivot axis are pivotable accordingly.
  • the rigidity of the roll tube drops towards the roll tube ends.
  • the rigidity in a respective roll tube end region can drop off axially, in particular starting from the region of an axially inner bearing point.
  • the stiffness outside of the inner bearing can drop steadily in particular.
  • the roller tube for example, again consist of fiber-reinforced plastic.
  • the rigidity of the roller tube may be at least partially adjusted by correspondingly changed material properties.
  • the roller tube can for example also consist of a homogeneous material such as metal or the like.
  • the rigidity of the roller tube may be at least partially adjusted by correspondingly changed geometric dimensions.
  • the Walzenrohrend Schemee are rotatably mounted on the bearing points in each case on a Walzenab supportslement, which is correspondingly pivotable about a pivot axis for adjusting the curvature of the roller tube.
  • Fig. 4 shows a schematic representation of a first exemplary embodiment of a spreader roll 22 according to the invention for a machine for producing a material web 24, which may be in particular a paper or board web.
  • the spreader roller 22 comprises a roller tube 26, are associated with the means for introducing bending moments, wherein in the present case, the bending moments are introduced exclusively via the front ends 28 of the roller tube 26.
  • the means for introducing bending moments comprise the front ends 28 of the roller tube 26 associated bearing carrier 30. These particular flange bearing support 30 are fixedly connected to the front side roller tube ends 28. To adjust the curvature of the roller tube 26, the bearing supports 30 associated bearing points 32, 34 are adjusted accordingly. The adjustment of the bearings 32, 34 via force elements 36th
  • a respective bearing support 30 each two axially spaced bearings 32, 34 assigned.
  • the bearings 32, 34 of a respective bearing support 30 for adjusting the curvature of the roller tube 26 from a neutral position about a common pivot axis 38 are pivotable.
  • the bearing supports 30 associated bearing points 32, 34 in the present case axially outside of Roller tube 26 is arranged.
  • the bearing support 30 each comprise a generally axially outwardly facing lug 40, on the radially outer side of the bearings 32, 34 are provided.
  • the roller tube 26 is thus fixedly connected at its front-side ends 28 each with a flange bearing support 30.
  • the two bearing points 32, 34 provided for a respective bearing carrier 30 can be deflected by a suitable force elements 36 about a common pivot axis 38 from a neutral position and thus enable an adjustable curvature of the roller tube 26.
  • the bending moments are each initiated at the end of the roller tube 26, so that a constant course of the bending moment over the entire length of the roller tube 26 is achieved. Accordingly, the curvature over the entire length of the roller tube 26 is uniform and without waste in the edge region.
  • the curvature rises to the ends of the roller tube 26 toward, which has a favorable effect on the spreading effect in the edge region of the web 24.
  • This edge region may, for example, each amount to approximately one third of the length of the roller tube 26.
  • the change in the material properties can be used to adjust the rigidity.
  • the rigidity is adjusted by a corresponding change in the geometric dimensions.
  • a spreader roll 22 with uniform curvature within the utilized web guide region AB can be realized with compact width dimensions, wherein the curvature can also be made larger there to improve the spreading effect in the edge region.
  • the bearing support 30 in the present case each have a generally axially into the interior of the roller tube 26 extending tubular extension 42 which is provided at its outer end with a collar 44 through which it is firmly connected to the relevant end face roller tube end 28.
  • the bearings 32, 34 are provided radially on the inside of the pipe 42.
  • the bearing carrier 30 are rotatably mounted on the bearing points 32, 34 each on a Walzenab 100lement 46. To adjust the curvature of the roller tube 26, these roller support elements 46 are respectively pivotable about a pivot axis 38. The pivoting can take place again via force elements 36.
  • Fig. 6 shows a schematic representation of another embodiment of the spreader roller 22 according to the invention with frontal introduction of the bending moments.
  • the bearing carrier 30 via the bearing points 32, 34 each on a stationary Walzenab rangelement 48 rotatably mounted.
  • the bearing points 32, 34 with respect to the stationary Walzenab Hublements 48 about a defined in the region of the axially inner bearing 34 common pivot axis 38 are pivotable.
  • a respective bearing support 30 two provided in different radial positions bearings 32, 34 assigned.
  • the bearing support 30 is provided at its axially outer end with a corresponding cross-sectional widening, in the region of which the radially also inside the bearing support 30 lying bearing 32 is disposed.
  • the bearing carrier 30 In the area of the cross-sectional widening of the bearing carrier 30 has a collar 44, via which it is firmly connected to the roller tube 26.
  • the axially outer end of the bearing support 30 is finally rotatably mounted on the radially displaceable guide ring 50.
  • Fig. 7 shows a schematic representation of a respective bearing support 30 of the spreader roller 22 according to Fig. 6 associated, radially displaceable on the Walzenab rangelement 48 guide ring 50 for adjusting the bearings 32, 34.
  • the corresponding displacement of the guide ring 30 can be done again via one or more force elements 36.
  • the axially outer bearing 32 is adjusted accordingly radially, whereby the two bearings 32, 34 comprehensive bearing corresponding to the pivot axis 38 defined in the region of the axially inner bearing 34 is pivoted.
  • Fig. 8 shows a schematic partial view of an embodiment of the spreader roller 22 according to the invention, in which the bending moments in the region of the two roller tube ends 52 are each introduced via at least two different radial layers within the roller tube 26.
  • the means for initiating the bending moments comprise the Walzenrohrend Schemeen 52 associated bearing points 32, 34 which are adjustable to adjust the curvature of the roller tube 26 accordingly.
  • power elements 36 are again provided.
  • a respective Walzenrohrend Scheme 52 are each assigned two provided in different radial positions bearings 32, 34, wherein the axially outer bearing 32 is radially further outward than the axially inner bearing 34th
  • the two bearing points 32, 34 of a respective Walzenrohrend Suites 52 are for adjusting the curvature of the roller tube 26 from a neutral position about a common pivot axis 38 pivotally.
  • the stiffness of the roller tube 26 drops to the front end of the roller tube 28 out. It can, as in the Fig. 8 shown in a respective Walzenrohrend Scheme 52, the stiffness in each case from the region of the axially inner bearing 34 fall axially outward.
  • the rigidity between the two bearings provided in different radial positions 32, 34 may in particular be reduced so that the decrease of the bending moment curve at least substantially compensated and, accordingly, an at least substantially uniform curvature of the roller tube 26 is obtained.
  • the roller tube 26 may, for example, again consist of fiber-reinforced plastic.
  • the rigidity of the roller tube 26 may be at least partially adjusted by correspondingly changed material properties.
  • the roller tube 26 may, for example, again consist of a homogeneous material such as metal or the like.
  • the rigidity of the roller tube 26 may be at least partially adjusted by correspondingly changed geometric dimensions, as in the in Fig. 8 the embodiment shown is the case in which, for example, the wall thickness of the roller tube 26 is reduced accordingly.
  • the Walzenrohrend Schemee 52 are rotatably mounted on the two bearing points 32, 34 each on a Walzenab mechanismslement 54 which is for pivoting the adjustment of the curvature of the roller tube 26 about the pivot axis 38.
  • the drop in the bending moment characteristic between the bearing points 32, 34 is compensated, for example, by a corresponding reduction in the rigidity of the tubular body, so that a uniform curvature is created.
  • the tubular body is therefore not uniform. Due to a disproportionate reduction in rigidity, the curvature in the edge region can also be increased here.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Polarising Elements (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Paper (AREA)
EP08000366A 2003-09-05 2004-07-28 Rouleau élargisseur Expired - Lifetime EP1921206B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341119A DE10341119A1 (de) 2003-09-05 2003-09-05 Breitstreckwalze
EP04103604A EP1512787B1 (fr) 2003-09-05 2004-07-28 Rouleau élargisseur

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04103604.7 Division 2004-07-28
EP04103604A Division EP1512787B1 (fr) 2003-09-05 2004-07-28 Rouleau élargisseur

Publications (3)

Publication Number Publication Date
EP1921206A2 true EP1921206A2 (fr) 2008-05-14
EP1921206A3 EP1921206A3 (fr) 2008-05-21
EP1921206B1 EP1921206B1 (fr) 2010-05-05

Family

ID=34129671

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04103604A Expired - Lifetime EP1512787B1 (fr) 2003-09-05 2004-07-28 Rouleau élargisseur
EP08000366A Expired - Lifetime EP1921206B1 (fr) 2003-09-05 2004-07-28 Rouleau élargisseur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04103604A Expired - Lifetime EP1512787B1 (fr) 2003-09-05 2004-07-28 Rouleau élargisseur

Country Status (3)

Country Link
EP (2) EP1512787B1 (fr)
AT (1) ATE410545T1 (fr)
DE (3) DE10341119A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI117640B (fi) * 2004-07-28 2006-12-29 Metso Paper Inc Johtotela rainanmuodostuskonetta varten ja menetelmät vastaavan johtotelan valmistamiseksi ja käyttämiseksi
DE102006021609B4 (de) * 2006-04-13 2008-01-31 Robec Walzen Gmbh Walze, insbesondere Breitstreckwalze zum Einsatz bei der Herstellung von Materialbahnen, inbesondere Papier- oder Kartonbahnen
DE102008026496A1 (de) * 2008-06-03 2009-12-24 Knorr, Andreas, Dipl.-Ing. Walze mit selbsteinstellbarer Durchbiegung
JP6148418B1 (ja) * 2016-02-24 2017-06-14 日本タングステン株式会社 ロータリーカッター用ロールおよびロータリーカッター
EP3874092A1 (fr) 2018-10-31 2021-09-08 Kampf Schneid- und Wickeltechnik GmbH & Co. KG Rouleau déplisseur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0932723B1 (fr) 1996-09-19 2002-11-20 Metso Paper, Inc. Rouleau de guidage d'une bande mobile

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085503A (en) * 1960-11-16 1963-04-16 Black Clawson Co Paper machinery
US3019511A (en) * 1961-02-15 1962-02-06 Beloit Iron Works Crowned roll
US3097591A (en) * 1961-11-24 1963-07-16 Beloit Iron Works Anti-deflection roll
DE2632022A1 (de) * 1976-07-16 1978-01-19 Dornbusch Maschf Vorrichtung zum erzeugen eines gleichmaessigen spannungszustandes in einer warenbahn
DE19601844A1 (de) * 1996-01-19 1997-07-24 Voith Sulzer Finishing Gmbh Leitwalze für eine Bahn aus Papier oder einem ähnlichen Material
DE19610949C2 (de) * 1996-03-20 2002-04-18 Schunk Kohlenstofftechnik Gmbh Walze und Verfahren zur Herstellung einer solchen
FI105804B (fi) * 1997-01-30 2000-10-13 Valmet Corp Ulosottotela, levitystela tai vastaava rainamaista materiaalia varten
FI103071B (fi) * 1997-08-19 1999-04-15 Valmet Corp Taivutettava tela rainamaista materiaalia varten
FI106741B (fi) * 2000-03-16 2001-03-30 Metso Paper Inc Komposiittivaippainen taivutettava tela
DE10153693B4 (de) * 2001-10-31 2004-03-04 Xperion Gmbh Walze

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0932723B1 (fr) 1996-09-19 2002-11-20 Metso Paper, Inc. Rouleau de guidage d'une bande mobile

Also Published As

Publication number Publication date
EP1512787A2 (fr) 2005-03-09
DE10341119A1 (de) 2005-03-31
EP1921206B1 (fr) 2010-05-05
DE502004011145D1 (de) 2010-06-17
EP1512787A3 (fr) 2005-11-30
EP1512787B1 (fr) 2008-10-08
DE502004008191D1 (de) 2008-11-20
ATE410545T1 (de) 2008-10-15
EP1921206A3 (fr) 2008-05-21

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